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2017


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Optimal gamification can help people procrastinate less

Lieder, F., Griffiths, T. L.

Annual Meeting of the Society for Judgment and Decision Making, Annual Meeting of the Society for Judgment and Decision Making, November 2017 (conference)

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Project Page [BibTex]

2017


Project Page [BibTex]


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An automatic method for discovering rational heuristics for risky choice

Lieder, F., Krueger, P. M., Griffiths, T. L.

In Proceedings of the 39th Annual Meeting of the Cognitive Science Society. Austin, TX: Cognitive Science Society, 2017, Falk Lieder and Paul M. Krueger contributed equally to this publication. (inproceedings)

Abstract
What is the optimal way to make a decision given that your time is limited and your cognitive resources are bounded? To answer this question, we formalized the bounded optimal decision process as the solution to a meta-level Markov decision process whose actions are costly computations. We approximated the optimal solution and evaluated its predictions against human choice behavior in the Mouselab paradigm, which is widely used to study decision strategies. Our computational method rediscovered well-known heuristic strategies and the conditions under which they are used, as well as novel heuristics. A Mouselab experiment confirmed our model’s main predictions. These findings are a proof-of-concept that optimal cognitive strategies can be automatically derived as the rational use of finite time and bounded cognitive resources.

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Project Page [BibTex]

Project Page [BibTex]


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A reward shaping method for promoting metacognitive learning

Lieder, F., Krueger, P. M., Callaway, F., Griffiths, T. L.

In Proceedings of the Third Multidisciplinary Conference on Reinforcement Learning and Decision-Making, 2017 (inproceedings)

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Project Page [BibTex]

Project Page [BibTex]


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When does bounded-optimal metareasoning favor few cognitive systems?

Milli, S., Lieder, F., Griffiths, T. L.

In AAAI Conference on Artificial Intelligence, 31, 2017 (inproceedings)

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[BibTex]

[BibTex]


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The Structure of Goal Systems Predicts Human Performance

Bourgin, D., Lieder, F., Reichman, D., Talmon, N., Griffiths, T.

In Proceedings of the 39th Annual Meeting of the Cognitive Science Society, 2017 (inproceedings)

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[BibTex]

[BibTex]


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Learning to (mis) allocate control: maltransfer can lead to self-control failure

Bustamante, L., Lieder, F., Musslick, S., Shenhav, A., Cohen, J.

In The 3rd Multidisciplinary Conference on Reinforcement Learning and Decision Making. Ann Arbor, Michigan, 2017 (inproceedings)

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[BibTex]

[BibTex]


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Mouselab-MDP: A new paradigm for tracing how people plan

Callaway, F., Lieder, F., Krueger, P. M., Griffiths, T. L.

In The 3rd multidisciplinary conference on reinforcement learning and decision making, 2017 (inproceedings)

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[BibTex]

[BibTex]


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Enhancing metacognitive reinforcement learning using reward structures and feedback

Krueger, P. M., Lieder, F., Griffiths, T. L.

In Proceedings of the 39th Annual Meeting of the Cognitive Science Society, 2017 (inproceedings)

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Project Page Project Page [BibTex]

Project Page Project Page [BibTex]


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Helping people choose subgoals with sparse pseudo rewards

Callaway, F., Lieder, F., Griffiths, T. L.

In Proceedings of the Third Multidisciplinary Conference on Reinforcement Learning and Decision Making, 2017 (inproceedings)

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[BibTex]

[BibTex]

2016


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Phase transitions and optimal algorithms in high-dimensional Gaussian mixture clustering

Lesieur, T., De Bacco, C., Banks, J., Krzakala, F., Moore, C., Zdeborová, L.

In Communication, Control, and Computing (Allerton), 2016 54th Annual Allerton Conference on, pages: 601-608, 2016 (inproceedings)

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Preprint link (url) [BibTex]

2016


Preprint link (url) [BibTex]


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Helping people make better decisions using optimal gamification

Lieder, F., Griffiths, T. L.

In Proceedings of the 38th Annual Conference of the Cognitive Science Society, 2016 (inproceedings)

Abstract
Game elements like points and levels are a popular tool to nudge and engage students and customers. Yet, no theory can tell us which incentive structures work and how to design them. Here we connect the practice of gamification to the theory of reward shaping in reinforcement learning. We leverage this connection to develop a method for designing effective incentive structures and delineating when gamification will succeed from when it will fail. We evaluate our method in two behavioral experiments. The results of the first experiment demonstrate that incentive structures designed by our method help people make better, less short-sighted decisions and avoid the pitfalls of less principled approaches. The results of the second experiment illustrate that such incentive structures can be effectively implemented using game elements like points and badges. These results suggest that our method provides a principled way to leverage gamification to help people make better decisions.

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link (url) Project Page [BibTex]

link (url) Project Page [BibTex]

2005


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Magnetization reversal behavior of nanogranular CoCrPt alloy thin films studied with magnetic transmission X-ray microscopy

Fischer, P., Im, M., Eimüller, T., Schütz, G., Shin, S.

In 286, pages: 311-314, Boulder, CO, USA, 2005 (inproceedings)

mms

[BibTex]

2005


[BibTex]


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Defects distribution of Pr2Fe14B hard magnetic magnet from amorphous to nanostructures characterized by positron annihilation spectroscopy

Wu, Y. C., Sprengel, W., Reimann, K., Reichle, K. J., Goll, D., Würschum, R., Schaefer, H. E.

In PRICM 5. Proceedings of the Fifth Pacific RIM International Conference on Advanced Materials and Processing, 475-479, pages: 2123-2126, Materials Science Forum, Trans Tech, Beijing, China, 2005 (inproceedings)

mms

[BibTex]

[BibTex]


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Implementing sub-ns time resolution into magnetic X-ray microscopies

Puzic, A., Stoll, H., Fischer, P., Van Waeyenberge, B., Raabe, J., Denbeaux, G., Haug, T., Weiss, D., Schütz, G.

In T115, pages: 1029-1031, Malmö/Lund, Sweden, 2005 (inproceedings)

mms

[BibTex]

[BibTex]

2000


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High-performance nanocrystalline PrFeB-based bonded permanent magnets

Goll, D., Kleinschroth, I., Kronmüller, H.

In Proceedings of the 16th International Workshop on Rare-Earth Magnets and Their Applications, pages: 641-650, Japan Institute of Metals, 2000 (inproceedings)

mms

[BibTex]

2000


[BibTex]


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Experimental and theoretical study of the Verwey transition in magnetite

Brabers, V. A. M., Brabers, J. H. V. J., Walz, F., Kronmüller, H.

In Proceedings 8th International Conference on Ferrites, pages: 123-125, Japan Society of Powder and Powder Metallurgy, 2000 (inproceedings)

mms

[BibTex]

[BibTex]


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Evolution of microstructure and microchemistry in the high-temperature Sm(Co, Fe, Cu, Zr)z magnets

Zhang, Y. W., Hadjipanayis, G. C., Goll, D., Kronmüller, H., Chen, C., Nelson, C., Krishnan, K.

In Proceedings of the 16th International Workshop on Rare-Earth Magnets and Their Applications, pages: 169-178, Sendai, Japan, 2000 (inproceedings)

mms

[BibTex]

[BibTex]


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Fundamental investigations and industrial applications of magnetostriction

Hirscher, M., Fischer, S. F., Reininger, T.

In Modern Trends in Magnetostriction Study and Application. Proceedings of the NATO Advanced Study Institute on Modern Trends in Magnetostriction, 5, pages: 307-329, NATO Science Series: II: Mathematics, Physics and Chemistry, Kluwer Academic Publishers, Kyiv, Ukraine, 2000 (inproceedings)

mms

[BibTex]

[BibTex]


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Micromagnetic and microstructural analysis of the temperature dependence of the coercive field of Sm2(Co, Cu, Fe, Zr)17 permanent magnets

Goll, D., Sigle, W., Hadjipanayis, G. C., Kronmüller, H.

In Proceedings of the 16th International Workshop on Rare-Earth Magnets and Their Applications, pages: 61-70, Kaneko, H.; Homma, M.; Okada, M., 2000 (inproceedings)

mms

[BibTex]

[BibTex]